rs730882095

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_000527.5(LDLR):​c.988A>C​(p.Asn330His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,788 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

LDLR
NM_000527.5 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2O:1

Conservation

PhyloP100: 1.72
Variant links:
Genes affected
LDLR (HGNC:6547): (low density lipoprotein receptor) The low density lipoprotein receptor (LDLR) gene family consists of cell surface proteins involved in receptor-mediated endocytosis of specific ligands. The encoded protein is normally bound at the cell membrane, where it binds low density lipoprotein/cholesterol and is taken into the cell. Lysosomes release the cholesterol, which is made available for repression of microsomal enzyme 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase, the rate-limiting step in cholesterol synthesis. At the same time, a reciprocal stimulation of cholesterol ester synthesis takes place. Mutations in this gene cause the autosomal dominant disorder, familial hypercholesterolemia. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a strand (size 4) in uniprot entity LDLR_HUMAN there are 9 pathogenic changes around while only 0 benign (100%) in NM_000527.5
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LDLRNM_000527.5 linkc.988A>C p.Asn330His missense_variant Exon 7 of 18 ENST00000558518.6 NP_000518.1 P01130-1A0A024R7D5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LDLRENST00000558518.6 linkc.988A>C p.Asn330His missense_variant Exon 7 of 18 1 NM_000527.5 ENSP00000454071.1 P01130-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251044
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135836
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000889
AC:
13
AN:
1461622
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727108
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152166
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000108
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hypercholesterolemia, familial, 1 Uncertain:1
Dec 01, 2023
All of Us Research Program, National Institutes of Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant (also known as p.Asn309His in the mature protein) replaces asparagine with histidine at codon 330 of the LDLR protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. In a high-throughput LDL uptake assay, this variant has been determined to be non-disruptive to LDLR function (PMID: 25647241). To our knowledge, this variant has not been reported in individuals affected with familial hypercholesterolemia in the literature. This variant has been identified in 6/282428 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Familial hypercholesterolemia Uncertain:1
Mar 24, 2025
Color Diagnostics, LLC DBA Color Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant replaces asparagine with histidine at codon 330 of the LDLR protein. This variant is also known as p.Asn309His in the mature protein. Computational prediction suggests that this variant may not impact protein structure and function. In a high-throughput LDL uptake assay, this variant has been determined to be non-disruptive to LDLR function (PMID: 25647241). To our knowledge, this variant has not been reported in individuals affected with LDLR-related disorders in the literature. This variant has been identified in 6/282428 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

not provided Other:1
-
Dept. of Genetics and Pharmacogenomics, Merck Research Labs
Significance: not provided
Review Status: no classification provided
Collection Method: in vitro

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.058
BayesDel_addAF
Benign
-0.0017
T
BayesDel_noAF
Benign
-0.11
CADD
Benign
19
DANN
Benign
0.97
DEOGEN2
Uncertain
0.67
D;.;.;.;.;.
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.71
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.82
T;T;T;T;T;T
M_CAP
Pathogenic
0.43
D
MetaRNN
Uncertain
0.50
D;D;D;D;D;D
MetaSVM
Uncertain
0.11
D
MutationAssessor
Benign
0.21
N;.;.;.;.;N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-1.9
N;N;N;N;N;N
REVEL
Uncertain
0.36
Sift
Benign
0.21
T;T;T;T;T;T
Sift4G
Benign
0.57
T;T;T;T;T;T
Polyphen
0.56
P;.;.;.;.;.
Vest4
0.44
MutPred
0.42
Loss of ubiquitination at K333 (P = 0.1459);Loss of ubiquitination at K333 (P = 0.1459);.;.;.;Loss of ubiquitination at K333 (P = 0.1459);
MVP
1.0
MPC
0.49
ClinPred
0.15
T
GERP RS
-1.1
Varity_R
0.36
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs730882095; hg19: chr19-11221375; API